Shredding-hammer.



M. F. WILLIAMS.

SHREDDING HAMMER.

APPLICATION FILED MAY 31, 1913 1,0'?,65,, Patented Nov. 18, 1 -913.

M'Meases I /m/e/770) M/lfon F MY/iams clear, and exact description, suchas will en:

mills of the that the shredding members L which they are subjected.

CRUSHER dc I ULVERIZER 'CGMPANY, ST. LDUIS, MISSOURI, A. CORPORATION OFMISSOURI.

SHREDDING-HAIIIMER{ 1,0t8,650. Sp i ca ion (if Letters P enPatented-Nov. 18, 3 3 Application filed MayBl, 1913. Serial No. 771,107.I

desired that such pivoted shredding meme bars have weig 1t sufiicient toinsure their acting effectively upon the material, which action isaccomplished by theirbeing held out radially of the shaft by centrifugalforce. The form of shredding hammer here in illustrated, and which Iconsider my invention, possesses these se addition to being economicalto mannfac ture, easy to sharpen and repair, of effective form forvarious shredding operations, and self-clearing. i

As illustrated in Fig. 2, shredding hammer may be made up of a series ofknife-like meinbersfirs i'vetcd to gether and having their pointsor'operating ends '10 bent 'or flared apart from one another. The endedges and points 11 are suitably sharpened or formed according to theparticular use to which the hammer is to be put. A suitable means 12 isprovided whereby the hammer may be mounted upon. the actuating member.The flared operating ends "'10. provide line shredding elements whichare adapted to shred the material acted upon very finely. Placed. asthey are closeto one another, and firmly held in this relationship, theshredding edges operate very effectively on material, as they co- To allwhom it may concern 4 Be itknown that I, MILToN F; WILLIAMS, a citizenof the'United States, residing at St. Louis,'Miss'ouri, have invented acertain new and useful Improvement in Shredding Iammers, of which thefollowing is a full,

able others skilled in the art to which it appertains to make and usethe same, reference being bad to the accompanying drawings, forming partof this specification, in Which- I Figure 1 is a'sectional elevation ofa r0 tary mill showing the application of my invention. Fig. 2' isaperspective view of one form of my invention. Fig. 3 is a perspectiveview of a modified form of my invention.

My invention relates broadly to milling and specifically to a form ofshredding hammer for use in rotary mills.

The principal, object of my invention is to produce an economicalandeflicient shredding hammer.

A further object or my inventionis to provide a rigid shredding hammerhaving small or fine shredding units, yet having the requisite weight toinsure effective operation.

i further object of my invention is to provide a shredding hammer whichwill be self-clearing and not subject to clogging by shredded material.

Other and further objects of my invention will be obvious or hereinafterpointed out.

Referring to the drawings it will be understood that my improved hammeris for use in a rotar' mill 1 wherein mounting disks 2 are carried onthe shaft 4, and the hammers 5 are pivotally mounted at 6 on the disks2. A suitable concave Z is adapted to cotiperate with the hammers 5, inthe reduc tion of thematerial which is introduced into the-feed hopper8.

In the fine shredding of various materials it is essential that thecutting or shredding elements be quite thin or fine in order to shredthe material to the desired degree of fineness. Moreover, in f rotaryshredding sort illustrated it is essential possess a high degree ofrigidity or stability'so as to prevent their being distorted, or theiraction diverted, due to the great force with which they. are operated,and the resistance to Moreover, itis material between them and hold itpositively to the action of the respective edges.

T o avoid the possibility of finely shredded material becoming lodgedin. the space between the blades 9, and the eiliciency of the hammerdecreased, clearing apertures ll are provided through the blades 9,opening just below the line where the blades come into contact. Materialwhich is forced between the blades readil escapes through theseapertures, and the space between the blades is thereby kept clear.

As illustrated in Fig. be disposed parallel to but separated from oneanother, instead of flared apart. This form may be built up of separateblades 3, the blades 9'1nav spacing strips between them, or this formmay be out out of a suitable bar.

From the fm'egoing desmiption it will be seen that my form of shreddinghammer has decided advantages in that while the shredding elements arequite line. they are at the "eral attributes in my improved operate withone another to compress the.

same, time quite rigid, and in operation each has the benefit of themomentum. accruing Hi9 Gnon T0 witmans M rna? riveted or welded togetherwith suitable the device may be made without'departing from the combinedWeight of all. Moreover, members being provided with an aperture theirrelative location 15 such as to produce an intimate and effectivecooperation be tween them whenthe device is acting upon material.

I am aware that further modifications in it and its adjacent operatingmembers.

a concave, a shredding hammer mounted upon the shaft and Edit ted tocobperate with the concave, said shredding hammer :i'rom the scope ofWhat I claim to be my invention, and it is my intention that thefollowing claims be construed to comprehend aii such modifications.

I claim: p

1. -A shreddin hammer consisting of a plurality of kni elike shreddingelements separated at their operating ends, and con joined in a commonshank portion, certain of said shreddin elements being provided withapertures or the purpose described.

2. A shredding hammer comprising a shank portion divided at one end intoa plurality of operating members disposed apart from one another, eachof said operating members conjoined ina common shank portion and havingtheir minimum width equal to the width of said shank portion, saidoperating members being provided with between them. I

In testimony whereof I hereunto afiix my signature in the presence oftwo Witnesses, this 26th day of lay, 1913.

MILTON 1?. winmans,

Witnesses:

M. P. SMITH, C. L. BUTLER.

communicating with the space intermediate 3. In combination with arotary shaft andcomprising a plurality of thin shredding.

apertures communicating with the spaces

